Playwright Extension Repro
FreeNot checkedA minimal reproduction repository designed to demonstrate and test Chrome extension loading within the Playwright MCP server. It evaluates specific configuratio
About
A minimal reproduction repository designed to demonstrate and test Chrome extension loading within the Playwright MCP server. It evaluates specific configuration settings required for successful extension injection and page modification.
README
Minimal reproduction showing that standard Chrome extension loading in the Playwright MCP server fails without specific configuration settings.
Feature Request: microsoft/playwright#39569
🚀 Quick Start
Install dependencies:
npm installRun the matrix test:
npm test
📊 What this tests
The script repro_matrix.ts compares two configurations:
ADVANCED_CONFIG: Uses the specific settings identified to enable extensions:
channel: ""(Reverts to bundled Chromium)chromiumSandbox: false(Allows unpacked extension mounting)allowUnrestrictedFileAccess: true(Disables protocol guard)
PAVEL_SUGGESTION: Uses the simplified configuration suggested in the feature request.
✅ Success Criteria
- Background Color: The extension should inject a content script that turns
example.compink (rgb(255, 192, 203)). - Page Title: The extension should change the document title to
PINK_EXT_ACTIVE.
Installing Playwright Extension Repro
This server has no published package — it is built from source. Open the repository and follow its README.
▸ github.com/hsm207/mcp-extension-reproFAQ
Is Playwright Extension Repro MCP free?
Yes, Playwright Extension Repro MCP is free — one-click install via Unyly at no cost.
Does Playwright Extension Repro need an API key?
No, Playwright Extension Repro runs without API keys or environment variables.
Is Playwright Extension Repro hosted or self-hosted?
Self-hosted: the server runs locally on your machine via the install command above.
How do I install Playwright Extension Repro in Claude Desktop, Claude Code or Cursor?
Open Playwright Extension Repro on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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